
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
    <div id="app">
       <ul>
        <li v-for="item in list" >{{ item }}</li>
       </ul>
       <button @click="run" >走一走</button>
    </div>
 
</body>
<script src="./vue.js" ></script>
<script>
   const app = new Vue({
    el:'#app',
    data:{
        list:['帅哥','美女','程序猿'],
        items:''
    },
    methods:{
       run() {
        items=this.list[0];
        this.list.shift();
        this.list.push(items)
       }
    }

   })
</script>
</html>